Vulnerability · Published Sep 26, 2026 · Assigned by VulnCheck

CVE-2026-100695Adminer before 6.0.2 XSS via CONNECTION_ID escalating to RCE

Medium 6.1

In plain English

A medium-severity cross-site scripting in adminer from vrana. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.3%top 72.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Adminer before 6.0.2 contains a cross-site scripting vulnerability where the CONNECTION_ID() database result is interpolated into JavaScript without proper escaping, allowing a malicious database server to execute arbitrary JavaScript in the authenticated Adminer origin. In co-located deployments where the database has FILE privileges and can write to the webroot, attackers can use the XSS to submit authenticated SQL requests that write PHP files via INTO DUMPFILE, achieving remote code execution as the web server account.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	adminer	no fix listed	DEBIAN-CVE-2026-100695
Debian:13	adminer	no fix listed	DEBIAN-CVE-2026-100695
Debian:14	adminer	6.0.2-1	DEBIAN-CVE-2026-100695
Ubuntu:22.04:LTS	adminer	no fix listed	UBUNTU-CVE-2026-100695
Ubuntu:24.04:LTS	adminer	no fix listed	UBUNTU-CVE-2026-100695
Ubuntu:26.04:LTS	adminer	no fix listed	UBUNTU-CVE-2026-100695
Ubuntu:26.10	adminer	no fix listed	UBUNTU-CVE-2026-100695

Affected products (as reported)

Vendor	Product	Versions
vrana	adminer	0 – before 6.0.2

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

GitHub Security Advisory (GHSA-7c5h-q78c-fpxx) vendor-advisory
VulnCheck Advisory: Adminer before 6.0.2 XSS via CONNECTION_ID escalating to RCE third-party-advisory